HOMEVULNERABILITIESCVE-2020-14621
MEDIUM

CVE-2020-14621

NVD-CWE-noinfoPublished: July 15, 2020· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JAXP). Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

NVD Source

Technical Analysis

CVE-2020-14621 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
mcafee1 product(s)
epolicy orchestrator
netapp15 product(s)
7-mode transition toolactive iq unified managercloud backupcloud secure agente-series performance analyzere-series santricity os controllere-series santricity storage managere-series santricity web servicesoncommand insightoncommand unified manager core packageoncommand workflow automationplug-in for symantec netbackup+3
openSUSE1 product(s)
leap
Oracle3 product(s)
openjdkjdkjre
Source: NVD CPE · 50 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (34)

https://usn.ubuntu.com/4433-1/Third Party Advisory
https://usn.ubuntu.com/4453-1/Third Party Advisory

Quick Facts

CVE IDCVE-2020-14621
CVSS Score5.3 / 10
SeverityMEDIUM
CISA KEVNo
Affected7 vendor(s)
PublishedJul 15, 2020

Related CVEs (NVD-CWE-noinfo)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-14621 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.